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https://issues.apache.org/jira/browse/BEAM-2790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16139909#comment-16139909
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Steve Loughran commented on BEAM-2790:
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OF course, a patch for HADOOP-14603 would make this go away completely.
> Error while reading from Amazon S3 via Hadoop File System
> ---------------------------------------------------------
>
> Key: BEAM-2790
> URL: https://issues.apache.org/jira/browse/BEAM-2790
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-extensions
> Affects Versions: 2.0.0, 2.1.0
> Reporter: Ismaël Mejía
> Assignee: Ismaël Mejía
>
> If you try to use hadoop-aws with Beam to read from AWS S3 it breaks because
> S3AInputStream (the implementation of Hadoop's FSDataInputStream) is not
> ByteBufferReadable.
> {code}
> Exception in thread "main" java.lang.UnsupportedOperationException:
> Byte-buffer read unsupported by input stream
> at
> org.apache.hadoop.fs.FSDataInputStream.read(FSDataInputStream.java:146)
> at
> org.apache.beam.sdk.io.hdfs.HadoopFileSystem$HadoopSeekableByteChannel.read(HadoopFileSystem.java:192)
> at
> org.apache.beam.sdk.io.TextSource$TextBasedReader.tryToEnsureNumberOfBytesInBuffer(TextSource.java:232)
> at
> org.apache.beam.sdk.io.TextSource$TextBasedReader.findSeparatorBounds(TextSource.java:166)
> at
> org.apache.beam.sdk.io.TextSource$TextBasedReader.readNextRecord(TextSource.java:198)
> at
> org.apache.beam.sdk.io.FileBasedSource$FileBasedReader.advanceImpl(FileBasedSource.java:481)
> at
> org.apache.beam.sdk.io.FileBasedSource$FileBasedReader.startImpl(FileBasedSource.java:476)
> at
> org.apache.beam.sdk.io.OffsetBasedSource$OffsetBasedReader.start(OffsetBasedSource.java:261)
> {code}
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